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I use a Dakin 2.4x barlow with my CCD camera. Until a week ago, the CCD
focal point rested just at the end of the barlow length. Now that I've added a filter wheel before the CCD, it is now approximately 2 1/8" farther away from the end of the barlow. Instead of 2.4x amplification, what has it increased to? Thanks, Barry Maxwell |
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